Thickbox。js

try {
	var isStyle = document.getElementById("hsScroll").type;
} catch (err) {
	document
			.write('<style id="ahsScroll" type="text/css">.hScroll{overflow:hidden;} .sScroll{}</style>');
}
function hideScroll() {
	document.documentElement.className = "hScroll";
}
function showScroll() {
	document.documentElement.className = "sScroll";
}

var tb_pathToImage = "../images/loadingAnimation.gif";
/*!!!!!!!!!!!!!!!!! edit below this line at your own risk !!!!!!!!!!!!!!!!!!!!!!!*/

function initThickboxCompressed(){
	tb_init('a.thickbox, area.thickbox, input.thickbox');//pass where to apply thickbox
	imgLoader = new Image();// preload image
	imgLoader.src = tb_pathToImage;
}

//on page load call tb_init
try{
	$(document).ready(function(){initThickboxCompressed();});
}catch (e){
}
//add thickbox to href & area elements that have a class of .thickbox
function tb_init(domChunk){
  $(domChunk).click(function(){
  var t = this.title || this.name || null;
  var a = this.href || this.alt;
  var g = this.rel || false;
  tb_show(t,a,g);
  this.blur();
  return false;
  });
}
function tb_show(caption, url, imageGroup) {//function called when the user clicks on a thickbox link
  try {//hideOverflow();
    if (typeof document.body.style.maxHeight === "undefined") {//if IE 6
      $("body","html").css({height: "100%", width: "100%"});
      $("html").css("overflow","hidden");
      if (document.getElementById("TB_HideSelect") === null) {//iframe to hide select elements in ie6
        $("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
        
      }
    }else{//all others
    	$("body","html").css({height: "100%", width: "100%"});
        $("html").css("overflow","hidden");
      if(document.getElementById("TB_overlay") === null){
        $("body").append("<div id='TB_overlay'></div><div id='TB_window'></div>");

      }
    }
    
    if(tb_detectMacXFF()){
      $("#TB_overlay").addClass("TB_overlayMacFFBGHack");//use png overlay so hide flash
    }else{
      $("#TB_overlay").addClass("TB_overlayBG");//use background and opacity
    }
    
    if(caption===null){
    	caption = $("#thickboxTitle").attr("value");
    	if (caption == undefined) {
			caption = "";
		}
    }
    $("body").append("<div id='TB_load'><img src='"+imgLoader.src+"' /></div>");//add loader to the page
    $('#TB_load').show();//show loader
    
    var baseURL;
     if(url.indexOf("?")!==-1){ //ff there is a query string involved
      baseURL = url.substr(0, url.indexOf("?"));
     }else{ 
         baseURL = url;
     }
     
     var urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$/;
     var urlType = baseURL.toLowerCase().match(urlString);
    if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){//code to show images
        
      TB_PrevCaption = "";
      TB_PrevURL = "";
      TB_PrevHTML = "";
      TB_NextCaption = "";
      TB_NextURL = "";
      TB_NextHTML = "";
      TB_imageCount = "";
      TB_FoundURL = false;
      if(imageGroup){
        TB_TempArray = $("a[@rel="+imageGroup+"]").get();
        for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML === "")); TB_Counter++) {
          var urlTypeTemp = TB_TempArray[TB_Counter].href.toLowerCase().match(urlString);
            if (!(TB_TempArray[TB_Counter].href == url)) {            
              if (TB_FoundURL) {
                TB_NextCaption = TB_TempArray[TB_Counter].title;
                TB_NextURL = TB_TempArray[TB_Counter].href;
                TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'>Next &gt;</a></span>";
              } else {
                TB_PrevCaption = TB_TempArray[TB_Counter].title;
                TB_PrevURL = TB_TempArray[TB_Counter].href;
                TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'>&lt; Prev</a></span>";
              }
            } else {
              TB_FoundURL = true;
              TB_imageCount = "Image " + (TB_Counter + 1) +" of "+ (TB_TempArray.length);                      
            }
        }
      }
      imgPreloader = new Image();
      imgPreloader.onload = function(){    
      imgPreloader.onload = null;
        
      // Resizing large images - orginal by Christian Montoya edited by me.
      var pagesize = tb_getPageSize();
      var x = pagesize[0] - 150;
      var y = pagesize[1] - 150;

      var imageWidth = imgPreloader.width;
      var imageHeight = imgPreloader.height;
      if (imageWidth > x) {
        imageHeight = imageHeight * (x / imageWidth); 
        imageWidth = x; 
        if (imageHeight > y) { 
          imageWidth = imageWidth * (y / imageHeight); 
          imageHeight = y; 
        }
      } else if (imageHeight > y) { 
        imageWidth = imageWidth * (y / imageHeight); 
        imageHeight = y; 
        if (imageWidth > x) { 
          imageHeight = imageHeight * (x / imageWidth); 
          imageWidth = x;
        }
      }
      // End Resizing
      
      TB_WIDTH = imageWidth + 30;
      TB_HEIGHT = imageHeight + 60;
      $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='close' style='font-size:38px;font-weight:bold'>&times;</a></div></div><a href='' id='TB_ImageOff' title='Close'><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_caption'>"+"</div>"); 	
      
      $("#TB_closeWindowButton").click(tb_remove);
      
      if (!(TB_PrevHTML === "")) {
        function goPrev(){
          if($(document).unbind("click",goPrev)){$(document).unbind("click",goPrev);}
          $("#TB_window").remove();
          $("body").append("<div id='TB_window'></div>");
          tb_show(TB_PrevCaption, TB_PrevURL, imageGroup);
          return false;  
        }
        $("#TB_prev").click(goPrev);
      }
      
      if (!(TB_NextHTML === "")) {    
        function goNext(){
          $("#TB_window").remove();
          $("body").append("<div id='TB_window'></div>");
          tb_show(TB_NextCaption, TB_NextURL, imageGroup);        
          return false;  
        }
        $("#TB_next").click(goNext);
        
      }
      document.onkeydown = function(e){   
        if (e == null) { // ie
          keycode = event.keyCode;
        } else { // mozilla
          keycode = e.which;
        }
        if(keycode == 27){ // close
          tb_remove();
        } else if(keycode == 190){ // display previous image
          if(!(TB_NextHTML == "")){
            document.onkeydown = "";
            goNext();
          }
        } else if(keycode == 188){ // display next image
          if(!(TB_PrevHTML == "")){
            document.onkeydown = "";
            goPrev();
          }
        }  
      };
      
      tb_position();
      $("#TB_load").remove();
      $("#TB_ImageOff").click(tb_remove);
      $("#TB_window").css({display:"block"}); //for safari using css instead of show
      };
      
      imgPreloader.src = url;
    }else{//code to show html
      
      var queryString = url.replace(/^[^\?]+\??/,'');
      var params = tb_parseQuery( queryString );
      TB_WIDTH = (params['width']*1) + 30 || 200; //defaults to 630 if no paramaters were added to URL
      TB_HEIGHT = (params['height']*1) + 40 || 440; //defaults to 440 if no paramaters were added to URL
      ajaxContentW = TB_WIDTH - 30;
      ajaxContentH = TB_HEIGHT - 45;
      
      if(url.indexOf('TB_iframe') != -1){// either iframe or ajax window    
          urlNoQuery = url.split('TB_');
          $("#TB_iframeContent").remove();
          if(params['modal'] != "true"){//iframe no modal
            $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close' style='font-size:20px;font-weight:bold;color: #a8a3ae;'>&times;</a></div></div><iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' > </iframe>");
          }else{//iframe modal
          $("#TB_overlay").unbind();
            $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close' style='font-size:20px;font-weight:bold;color: #a8a3ae;'>&times;</a></div></div><iframe scrolling='auto' frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;'> </iframe>");
          }
      }else{// not an iframe, ajax
          if($("#TB_window").css("display") != "block"){
            if(params['modal'] != "true"){//ajax no modal
            $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>&times;</a></div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px'></div>");
            }else{//ajax modal
            $("#TB_overlay").unbind();
            $("#TB_window").append("<div id='TB_ajaxContent' class='TB_modal' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");  
            }
          }else{//this means the window is already up, we are just loading new content via ajax
            $("#TB_ajaxContent")[0].style.width = ajaxContentW +"px";
            $("#TB_ajaxContent")[0].style.height = ajaxContentH +"px";
            $("#TB_ajaxContent")[0].scrollTop = 0;
            $("#TB_ajaxWindowTitle").html(caption);
          }
      }
          
      $("#TB_closeWindowButton").click(tb_remove);
      
        if(url.indexOf('TB_inline') != -1){  
          $("#TB_ajaxContent").append($('#' + params['inlineId']).children());
          $("#TB_window").unload(function () {
            $('#' + params['inlineId']).append( $("#TB_ajaxContent").children() ); // move elements back when you're finished
          });
          tb_position();
          $("#TB_load").remove();
          $("#TB_window").css({display:"block"}); 
        }else if(url.indexOf('TB_iframe') != -1){
          tb_position();
          if($.browser.safari){//safari needs help because it will not fire iframe onload
            $("#TB_load").remove();
            $("#TB_window").css({display:"block"});
          }
        }else{
          $("#TB_ajaxContent").load(url += "&random=" + (new Date().getTime()),function(){//to do a post change this load method
            tb_position();
            $("#TB_load").remove();
            tb_init("#TB_ajaxContent a.thickbox");
            $("#TB_window").css({display:"block"});
          });
        }
      
    }
    if(!params['modal']){
      document.onkeyup = function(e){   
        if (e == null) { // ie
          keycode = event.keyCode;
        } else { // mozilla
          keycode = e.which;
        }
        if(keycode == 27){ // close
          tb_remove();
        }  
      };
    }
  } catch(e) {
    //nothing here
  }
}
//helper functions below
function tb_showIframe(){
  $("#TB_load").remove();
  $("#TB_window").css({display:"block"});
}
function tb_remove() {//showOverflow();
     $("#TB_imageOff").unbind("click");
     $("#TB_closeWindowButton").unbind("click");
     $("#TB_window").fadeOut("fast", function() {
         /**////手动移除ifrmae，IE的一个bug
         $('#TB_iframeContent').remove();
         $('#TB_window,#TB_overlay,#TB_HideSelect').trigger("unload").unbind().remove();
        /**////自己调用垃圾回收，强制清楚iframe内存，解决文本框无法输入问题。
         CollectGarbage();
     });
    if (typeof document.body.style.maxHeight == "undefined") {//if IE 6
        $("body","html").css({height: "auto", width: "auto"});
        $("html").css("overflow","");
    }else{
    	$("body","html").css({height: "auto", width: "auto"});
        $("html").css("overflow","");
    }
    document.onkeydown = "";
    document.onkeyup = "";
   return false;
}



function tb_position() {
$("#TB_window").css({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
  if ( !(jQuery.browser.msie && jQuery.browser.version < 7)) { // take away IE6
    $("#TB_window").css({marginTop: '-' + parseInt((TB_HEIGHT / 2),10) + 'px'});
  }
}
function tb_parseQuery ( query ) {
   var Params = {};
   if ( ! query ) {return Params;}// return empty object
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
      var KeyVal = Pairs[i].split('=');
      if ( ! KeyVal || KeyVal.length != 2 ) {continue;}
      var key = unescape( KeyVal[0] );
      var val = unescape( KeyVal[1] );
      val = val.replace(/\+/g, ' ');
      Params[key] = val;
   }
   return Params;
}
function tb_getPageSize(){
  var de = document.documentElement;
  var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
  var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;
  arrayPageSize = [w,h];
  return arrayPageSize;
}
function tb_detectMacXFF() {
  var userAgent = navigator.userAgent.toLowerCase();
  if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
    return true;
  }
}